2week old newborn wont sleep in his crib?

Ill rock him till he's drifting off and lay him in it and hell lay for 5mins then start crying, he has a chair he sits and sleeps in during the day and he has no problem getting himself to sleep init even without the vibrations and music playing. I have tried swaddling and my midwife was not best pleased, he seems to like sleeping sitting up but I don't think its very safe to prop him up in his crib, should I let him sleep in his chair at night and try his crib again when he is a month or so old?